Mechanical, oxidation and ablation properties of C/(C-SiC)CVI-(ZrC-SiC)PIP composites

Mechanical, oxidation and ablation properties of C/(C-SiC)CVI-(ZrC-SiC)PIP composites
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C/(C-SiC)CVI-(ZrC-SiC)PIP复合材料的机械、氧化和烧蚀性能

DOI:
10.1016/j.corsci.2019.108200
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发表时间:
2020
期刊:
影响因子:
8.3
通讯作者:
Hui-Ming Cheng
Hui-Ming Cheng
中科院分区:
材料科学1区
文献类型:
--
作者:
Jinjin Yao;Shengyang Pang;Chenglong Hu;Jian Li;Sufang Tang;Hui-Ming Cheng

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采用化学气相浸渗-先驱体浸渗-热解(CVI-PIP)工艺制备了不同体积比的C/C-SiC-ZrC复合材料。当C-SiC体积比为0.91时,复合材料的拉伸强度和弯曲强度分别为181.7 MPa和352.8 MPa,在800 ~ 1400 °C下保温30 h的抗氧化性能也较好。在2100 °C氧乙炔烧蚀600 s后,C-SiC体积比为0.12的复合材料具有较好的抗烧蚀性能,线烧蚀率和质量烧蚀率分别为0.94 μ m × s-1和0.13 mg × cm-2×s-1。
A joint chemical vapor infiltration-precursor infiltration and pyrolysis (CVI-PIP) process was used to fabricate C/C-SiC-ZrC composites with different volume ratio of CVI-derived C-SiC. The composite with a C-SiC volume ratio of 0.91 has a higher tensile and flexural strength of 181.7 MPa and 352.8 MPa, respectively, and also exhibits a better anti-oxidation property at 800∼1400 °C for 30 h. After an oxyacetylene ablation for 600 s at ∼2100 °C, the composite with a C-SiC volume ratio of 0.12 possesses a better anti-ablation performance with a linear and mass ablation rates of 0.94 um × s−1and 0.13 mg × cm-2×s−1, respectively.
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